5-(Pyridin-4-yl)thiophene-2-carboxylic acid CAS 216867-32-2
| CAS No. | 216867-32-2 |
| Molecular Formula | C10H7NO2S |
| Molecular Weight | 205.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(Pyridin-4-yl)thiophene-2-carboxylic acid (CAS 216867-32-2) is a high-purity analytical reference standard with the molecular formula C10H7NO2S and a molecular weight of 205.23 g/mol.
Based on its molecular formula C10H7NO2S, 5-(Pyridin-4-yl)thiophene-2-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 205.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H7NO2S |
| Molecular Weight | 205.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2018 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Pyridin Standards
- 5-(Pyridin-2-yl)thiophene-2-carboxylic acid (CAS 119082-97-2)
- 3-(Pyridin-3-yl)thiophene-2-carboxylic acid (CAS 1214326-28-9)
- 3-(Pyridin-4-yl)thiophene-2-carboxylic acid (CAS 1214380-77-4)
- 3-(Pyridin-2-yl)thiophene-2-carboxylic acid (CAS 166450-84-6)
- 4-(Pyridin-4-yl)thiophene-2-carboxylic acid (CAS 197775-53-4)
- 4-(Pyridin-2-yl)thiophene-2-carboxylic acid (CAS 278803-21-7)
- 4-(Pyridin-3-yl)thiophene-2-carboxylic acid (CAS 278803-22-8)
- 5-(pyridin-2-ylthio)furan-2-carbaldehyde (CAS 709635-68-7)
Recommended Standards
- 5-(Pyridin-3-yl)thiophene-2-carboxylic acid (CAS 278803-20-6)
- 5-(Thiophen-2-yl)nicotinic acid (CAS 306934-96-3)
- 5-(Thiophen-3-yl)nicotinic acid (CAS 893723-32-5)
- 4-Phenylthiazole-5-carboxylic acid (CAS 99822-84-1)
- 4,4'-Dimethoxy-2,2'5,5'-tetraacetoxybiphenyl (CAS 7461-72-5)
- 4-Bromo-2-fluoro-[1,1'-biphenyl]-3-carbaldehyde (CAS 2635937-93-6)
- 2-(4-Ethynylphenyl)acetaldehyde (CAS 2228288-05-7)
- 4-((1,3-Difluoropropan-2-yl)oxy)aniline hydrochloride (CAS 109230-64-0)
- N-methyl-1-(4-methyl-4H-thieno[3,2-b]pyrrol-5-yl)methanamine hydrochloride (CAS 335033-68-6)
- 4-[(3,4-Dichlorobenzyl)oxy]-3-methoxybenzoyl chloride (CAS 1160251-23-9)
- 6,7-Dimethoxy-4-methylquinazolin-2-amine (CAS 21575-02-0)
- 6-(((Tert-butyldimethylsilyl)oxy)methyl)-3-methyl-3H-imidazo[4,5-b]pyridine (CAS 1186311-15-8)
- 1,3-Thiazole-2-sulfonamide (CAS 113411-24-8)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
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